DE2007231B2 - Schaltungsanordnung .zur Demodulation frequenzmodulierter Signale bei der Datenübertragung - Google Patents

Schaltungsanordnung .zur Demodulation frequenzmodulierter Signale bei der Datenübertragung

Info

Publication number
DE2007231B2
DE2007231B2 DE2007231A DE2007231A DE2007231B2 DE 2007231 B2 DE2007231 B2 DE 2007231B2 DE 2007231 A DE2007231 A DE 2007231A DE 2007231 A DE2007231 A DE 2007231A DE 2007231 B2 DE2007231 B2 DE 2007231B2
Authority
DE
Germany
Prior art keywords
transistor
circuit
signals
pulses
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE2007231A
Other languages
German (de)
English (en)
Other versions
DE2007231A1 (de
Inventor
Allan J. Fairport N.Y. Bell
Roger B. Fairfax Va. Stone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of DE2007231A1 publication Critical patent/DE2007231A1/de
Publication of DE2007231B2 publication Critical patent/DE2007231B2/de
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00095—Systems or arrangements for the transmission of the picture signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/36—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device for synchronising or phasing transmitter and receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Manipulation Of Pulses (AREA)
  • Dc Digital Transmission (AREA)
  • Facsimile Image Signal Circuits (AREA)
DE2007231A 1969-02-17 1970-02-17 Schaltungsanordnung .zur Demodulation frequenzmodulierter Signale bei der Datenübertragung Ceased DE2007231B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79985569A 1969-02-17 1969-02-17

Publications (2)

Publication Number Publication Date
DE2007231A1 DE2007231A1 (de) 1970-09-03
DE2007231B2 true DE2007231B2 (de) 1978-05-11

Family

ID=25176938

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2007231A Ceased DE2007231B2 (de) 1969-02-17 1970-02-17 Schaltungsanordnung .zur Demodulation frequenzmodulierter Signale bei der Datenübertragung

Country Status (10)

Country Link
US (1) US3581220A (fr)
JP (1) JPS4836966B1 (fr)
BE (1) BE746100A (fr)
CA (1) CA922788A (fr)
DE (1) DE2007231B2 (fr)
ES (1) ES376545A1 (fr)
FR (1) FR2035290A5 (fr)
GB (1) GB1274123A (fr)
NL (1) NL7001912A (fr)
SE (1) SE363008B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007502A1 (de) * 1980-02-28 1981-09-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur aufbereitung eines digital-signales

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852531A (en) * 1970-09-30 1974-12-03 Design Elements Inc Answer-originate data communication system
BE786046A (fr) * 1971-07-13 1973-01-10 Int Standard Electric Corp Discriminateur de frequences
US3825842A (en) * 1971-08-30 1974-07-23 J Birchfield Pulse rate discriminator generating output only at predetermined input frequency
US3746993A (en) * 1971-12-27 1973-07-17 Ncr Carrier detection circuit
US3801918A (en) * 1972-09-15 1974-04-02 Us Navy Low-phase-shift incremental fm demodulator
US3852616A (en) * 1973-02-21 1974-12-03 Bendix Corp Frequency selection by period timing
JPS50125842A (fr) * 1974-03-25 1975-10-03
US4039959A (en) * 1975-07-31 1977-08-02 Westinghouse Electric Corporation Two-tone decoder having high noise immunity
US4013967A (en) * 1976-04-29 1977-03-22 The United States Of America As Represented By The Secretary Of The Navy Mid-pulse detector
CH625484A5 (fr) * 1977-10-05 1981-09-30 Loepfe Ag Geb
US4227255A (en) * 1979-04-11 1980-10-07 Telcom, Inc. Signal classifier

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900508A (en) * 1957-04-02 1959-08-18 Burroughs Corp Discriminator
NL273846A (fr) * 1961-01-24
CA705993A (en) * 1961-03-09 1965-03-16 Radio Corporation Of America Pulse stretcher employing alternately actuated monostable circuits
US3099800A (en) * 1961-07-11 1963-07-30 Kauke And Company Inc Frequency to voltage converting circuit
US3235812A (en) * 1961-10-04 1966-02-15 Hazeltine Research Inc Apparatus for generating an electrical signal
US3353102A (en) * 1963-12-26 1967-11-14 Bell Telephone Labor Inc Frequency shift receiver with noise frequency detection
DE1443746A1 (de) * 1964-10-06 1969-03-20 Dynamit Nobel Ag Verfahren zur Oxydation von Akrolein oder Methakrolein
US3426151A (en) * 1965-11-15 1969-02-04 Lockheed Aircraft Corp Apparatus for reception of remotely transmitted data utilizing a frequency modulated carrier signal within the audio speech range
US3439283A (en) * 1966-02-04 1969-04-15 Gen Electric Frequency shift keyed discriminating circuits
US3491305A (en) * 1966-12-21 1970-01-20 Xerox Corp Fm demodulator zero-crossing detector
US3493877A (en) * 1967-12-15 1970-02-03 Xerox Corp Zero-crossing detector for frequency modulated signals
CH465005A (de) * 1968-02-27 1968-11-15 Landis & Gyr Ag Frequenztor, ausgebildet als Hoch-, Tief- oder Bandpass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007502A1 (de) * 1980-02-28 1981-09-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur aufbereitung eines digital-signales

Also Published As

Publication number Publication date
BE746100A (fr) 1970-08-17
JPS4836966B1 (fr) 1973-11-08
FR2035290A5 (fr) 1970-12-18
US3581220A (en) 1971-05-25
CA922788A (en) 1973-03-13
GB1274123A (en) 1972-05-10
DE2007231A1 (de) 1970-09-03
SE363008B (fr) 1973-12-27
NL7001912A (fr) 1970-08-19
ES376545A1 (es) 1972-09-16

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Legal Events

Date Code Title Description
8235 Patent refused